DE69323817T2 - Präzisionsgiessen unter Verwendung von Kern mit integrierter Wanddickenkontrollvorrichtung - Google Patents

Präzisionsgiessen unter Verwendung von Kern mit integrierter Wanddickenkontrollvorrichtung

Info

Publication number
DE69323817T2
DE69323817T2 DE69323817T DE69323817T DE69323817T2 DE 69323817 T2 DE69323817 T2 DE 69323817T2 DE 69323817 T DE69323817 T DE 69323817T DE 69323817 T DE69323817 T DE 69323817T DE 69323817 T2 DE69323817 T2 DE 69323817T2
Authority
DE
Germany
Prior art keywords
core
control device
wall thickness
thickness control
precision casting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69323817T
Other languages
English (en)
Other versions
DE69323817D1 (de
Inventor
Charles F Caccavale
William E Sikkenga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Howmet Corp
Original Assignee
Howmet Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Howmet Corp filed Critical Howmet Corp
Publication of DE69323817D1 publication Critical patent/DE69323817D1/de
Application granted granted Critical
Publication of DE69323817T2 publication Critical patent/DE69323817T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor
    • B22C21/12—Accessories
    • B22C21/14—Accessories for reinforcing or securing moulding materials or cores, e.g. gaggers, chaplets, pins, bars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12292—Workpiece with longitudinal passageway or stopweld material [e.g., for tubular stock, etc.]
DE69323817T 1992-08-10 1993-08-03 Präzisionsgiessen unter Verwendung von Kern mit integrierter Wanddickenkontrollvorrichtung Expired - Lifetime DE69323817T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/931,221 US5296308A (en) 1992-08-10 1992-08-10 Investment casting using core with integral wall thickness control means

Publications (2)

Publication Number Publication Date
DE69323817D1 DE69323817D1 (de) 1999-04-15
DE69323817T2 true DE69323817T2 (de) 1999-09-23

Family

ID=25460418

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69323817T Expired - Lifetime DE69323817T2 (de) 1992-08-10 1993-08-03 Präzisionsgiessen unter Verwendung von Kern mit integrierter Wanddickenkontrollvorrichtung

Country Status (5)

Country Link
US (1) US5296308A (de)
EP (1) EP0585183B1 (de)
JP (1) JP3226674B2 (de)
CA (1) CA2100371C (de)
DE (1) DE69323817T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010011529A1 (de) * 2010-03-15 2011-09-15 Benteler Automobiltechnik Gmbh Verfahren und Vorrichtung zur Herstellung von Gussbauteilen

Families Citing this family (122)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9317518D0 (en) * 1993-08-23 1993-10-06 Rolls Royce Plc Improvements in or relating to investment casting
US5465780A (en) * 1993-11-23 1995-11-14 Alliedsignal Inc. Laser machining of ceramic cores
US5577550A (en) * 1995-05-05 1996-11-26 Callaway Golf Company Golf club metallic head formation
US5735335A (en) * 1995-07-11 1998-04-07 Extrude Hone Corporation Investment casting molds and cores
US5853044A (en) * 1996-04-24 1998-12-29 Pcc Airfoils, Inc. Method of casting an article
US6003754A (en) * 1997-10-21 1999-12-21 Allison Advanced Development Co. Airfoil for a gas turbine engine and method of manufacture
US7343960B1 (en) * 1998-11-20 2008-03-18 Rolls-Royce Corporation Method and apparatus for production of a cast component
CA2628350C (en) * 1998-11-20 2010-10-26 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6932145B2 (en) * 1998-11-20 2005-08-23 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6186217B1 (en) 1998-12-01 2001-02-13 Howmet Research Corporation Multipiece core assembly
US6347660B1 (en) * 1998-12-01 2002-02-19 Howmet Research Corporation Multipiece core assembly for cast airfoil
US6398501B1 (en) * 1999-09-17 2002-06-04 General Electric Company Apparatus for reducing thermal stress in turbine airfoils
ATE350182T1 (de) * 1999-10-26 2007-01-15 Howmet Res Corp Mehrwandiger kern und verfahren
ATE355918T1 (de) 1999-12-08 2007-03-15 Gen Electric Kern zur einstellung der wanddicke einer turbinenschaufel und verfahren
DE10041505A1 (de) * 1999-12-23 2001-09-06 Alstom Schweiz Ag Baden Werkzeug zur Herstellung von Gusskernen
US6505673B1 (en) * 1999-12-28 2003-01-14 General Electric Company Method for forming a turbine engine component having enhanced heat transfer characteristics
US6368525B1 (en) * 2000-02-07 2002-04-09 General Electric Company Method for removing volatile components from a ceramic article, and related processes
US6588484B1 (en) * 2000-06-20 2003-07-08 Howmet Research Corporation Ceramic casting cores with controlled surface texture
DE10038453A1 (de) * 2000-08-07 2002-02-21 Alstom Power Nv Verfahren zur Herstellung eines gekühlten Feingussteils
EP1188500B1 (de) * 2000-09-14 2006-08-16 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur Herstellung einer Schaufel für eine Turbine sowie entsprechend hergestellte Schaufel
DE10060141A1 (de) 2000-12-04 2002-06-06 Alstom Switzerland Ltd Verfahren zur Herstellung eines Gussteils, Modellform und keramischer Einsatz zum Gebrauch in diesem Verfahren
US6505678B2 (en) 2001-04-17 2003-01-14 Howmet Research Corporation Ceramic core with locators and method
US6619378B1 (en) * 2001-05-01 2003-09-16 Findings Incorporated Lost core method of molding gemstone seats
US6403020B1 (en) 2001-08-07 2002-06-11 Howmet Research Corporation Method for firing ceramic cores
US6830093B2 (en) * 2001-12-26 2004-12-14 Callaway Golf Company Positioning tool for ceramic cores
US6766850B2 (en) 2001-12-27 2004-07-27 Caterpillar Inc Pressure casting using a supported shell mold
DE10236339B3 (de) * 2002-08-08 2004-02-19 Doncasters Precision Castings-Bochum Gmbh Verfahren zum Herstellen von Turbinenschaufeln mit darin angeordneten Kühlkanälen
US20040115059A1 (en) * 2002-12-12 2004-06-17 Kehl Richard Eugene Cored steam turbine bucket
US6915840B2 (en) * 2002-12-17 2005-07-12 General Electric Company Methods and apparatus for fabricating turbine engine airfoils
EP1529580B1 (de) 2003-10-29 2009-01-07 Siemens Aktiengesellschaft Gussform
US6929054B2 (en) 2003-12-19 2005-08-16 United Technologies Corporation Investment casting cores
US7216694B2 (en) * 2004-01-23 2007-05-15 United Technologies Corporation Apparatus and method for reducing operating stress in a turbine blade and the like
US7216689B2 (en) * 2004-06-14 2007-05-15 United Technologies Corporation Investment casting
US7172012B1 (en) * 2004-07-14 2007-02-06 United Technologies Corporation Investment casting
US20070215315A1 (en) * 2004-07-26 2007-09-20 Metal Casting Technology, Incorporated Method and apparatus for removing a fugitive pattern from a mold
US7204296B2 (en) * 2004-07-26 2007-04-17 Metal Casting Technology, Incorporated Method of removing a fugitive pattern from a mold
US7134475B2 (en) 2004-10-29 2006-11-14 United Technologies Corporation Investment casting cores and methods
US7093645B2 (en) * 2004-12-20 2006-08-22 Howmet Research Corporation Ceramic casting core and method
US7306026B2 (en) 2005-09-01 2007-12-11 United Technologies Corporation Cooled turbine airfoils and methods of manufacture
US20070068649A1 (en) * 2005-09-28 2007-03-29 Verner Carl R Methods and materials for attaching ceramic and refractory metal casting cores
US7322396B2 (en) * 2005-10-14 2008-01-29 General Electric Company Weld closure of through-holes in a nickel-base superalloy hollow airfoil
GB2431893B (en) * 2005-11-01 2009-12-16 Doncasters Ltd Medical prosthesis implant casting process
US7802613B2 (en) * 2006-01-30 2010-09-28 United Technologies Corporation Metallic coated cores to facilitate thin wall casting
US20070274854A1 (en) * 2006-05-23 2007-11-29 General Electric Company Method of making metallic composite foam components
US20070295785A1 (en) * 2006-05-31 2007-12-27 General Electric Company Microwave brazing using mim preforms
US7845549B2 (en) * 2006-05-31 2010-12-07 General Electric Company MIM braze preforms
US7753104B2 (en) * 2006-10-18 2010-07-13 United Technologies Corporation Investment casting cores and methods
US8087447B2 (en) * 2006-10-30 2012-01-03 United Technologies Corporation Method for checking wall thickness of hollow core airfoil
US20080110024A1 (en) * 2006-11-14 2008-05-15 Reilly P Brennan Airfoil casting methods
US7610946B2 (en) * 2007-01-05 2009-11-03 Honeywell International Inc. Cooled turbine blade cast tip recess
US8066052B2 (en) * 2007-06-07 2011-11-29 United Technologies Corporation Cooled wall thickness control
EP2127781A1 (de) 2008-05-29 2009-12-02 Siemens Aktiengesellschaft Verfahren zur Herstellung einer Turbinenschaufel
US20100028645A1 (en) * 2008-08-04 2010-02-04 Michael Maguire Adaptive supports for green state articles and methods of processing thereof
US20110094698A1 (en) * 2009-10-28 2011-04-28 Howmet Corporation Fugitive core tooling and method
US8082972B1 (en) 2010-10-05 2011-12-27 Mpi Incorporated System for assembly wax trees using flexible branch
FR2965740B1 (fr) * 2010-10-06 2013-04-12 Snecma Moule de fabrication de pieces par injection de cire
EP2450123A1 (de) * 2010-11-03 2012-05-09 Siemens Aktiengesellschaft Verfahren zur Hestellung eines kernwerkzeuges
FR2986982A1 (fr) * 2012-02-22 2013-08-23 Snecma Ensemble de noyau de fonderie pour la fabrication d'une aube de turbomachine, procede de fabrication d'une aube et aube associes
US9234428B2 (en) * 2012-09-13 2016-01-12 General Electric Company Turbine bucket internal core profile
US9486853B2 (en) 2012-09-14 2016-11-08 United Technologies Corporation Casting of thin wall hollow airfoil sections
JP6199018B2 (ja) * 2012-10-09 2017-09-20 三菱日立パワーシステムズ株式会社 精密鋳造用鋳型の製造方法
JP6095933B2 (ja) * 2012-10-09 2017-03-15 三菱日立パワーシステムズ株式会社 精密鋳造用鋳型の製造方法
JP6199019B2 (ja) * 2012-10-09 2017-09-20 三菱日立パワーシステムズ株式会社 精密鋳造用鋳型の製造方法
JP6095934B2 (ja) * 2012-10-09 2017-03-15 三菱日立パワーシステムズ株式会社 精密鋳造用鋳型の製造方法
JP6095935B2 (ja) * 2012-10-09 2017-03-15 三菱日立パワーシステムズ株式会社 精密鋳造用鋳型の製造方法
US8936067B2 (en) * 2012-10-23 2015-01-20 Siemens Aktiengesellschaft Casting core for a cooling arrangement for a gas turbine component
US9835035B2 (en) * 2013-03-12 2017-12-05 Howmet Corporation Cast-in cooling features especially for turbine airfoils
CN103143682B (zh) * 2013-04-01 2015-02-18 东方电气集团东方汽轮机有限公司 一种用于制造高温合金空心叶片的型芯
US9415438B2 (en) * 2013-04-19 2016-08-16 United Technologies Corporation Method for forming single crystal parts using additive manufacturing and remelt
US10300526B2 (en) 2014-02-28 2019-05-28 United Technologies Corporation Core assembly including studded spacer
US10099275B2 (en) 2014-04-07 2018-10-16 United Technologies Corporation Rib bumper system
WO2015195110A1 (en) * 2014-06-18 2015-12-23 Siemens Energy, Inc. Turbine blade investment casting using film hole protrusions for integral wall thickness control
EP2990598A1 (de) * 2014-08-27 2016-03-02 Siemens Aktiengesellschaft Turbinenschaufel und Turbine
GB201415726D0 (en) 2014-09-05 2014-10-22 Rolls Royce Plc Casting of engine parts
US9616492B2 (en) 2014-09-16 2017-04-11 Pcc Airfoils, Inc. Core making method and apparatus
WO2016064463A1 (en) 2014-10-24 2016-04-28 Siemens Aktiengesellschaft Electrochemical machining inner contours of gas turbine engine components
CN104399888B (zh) * 2014-11-07 2016-06-22 沈阳黎明航空发动机(集团)有限责任公司 一种控制航空发动机空心叶片壁厚的熔模铸造方法
CN104439081B (zh) * 2014-11-25 2017-08-08 苏氏工业科学技术（北京）有限公司 用于金属铸造的浇注成型工艺中的铸型及一种铸件
US10260353B2 (en) * 2014-12-04 2019-04-16 Rolls-Royce Corporation Controlling exit side geometry of formed holes
FR3034128B1 (fr) * 2015-03-23 2017-04-14 Snecma Noyau ceramique pour aube de turbine multi-cavites
US9987677B2 (en) 2015-12-17 2018-06-05 General Electric Company Method and assembly for forming components having internal passages using a jacketed core
US10099276B2 (en) 2015-12-17 2018-10-16 General Electric Company Method and assembly for forming components having an internal passage defined therein
US10137499B2 (en) 2015-12-17 2018-11-27 General Electric Company Method and assembly for forming components having an internal passage defined therein
US10099283B2 (en) 2015-12-17 2018-10-16 General Electric Company Method and assembly for forming components having an internal passage defined therein
US10099284B2 (en) 2015-12-17 2018-10-16 General Electric Company Method and assembly for forming components having a catalyzed internal passage defined therein
US10046389B2 (en) 2015-12-17 2018-08-14 General Electric Company Method and assembly for forming components having internal passages using a jacketed core
US10118217B2 (en) 2015-12-17 2018-11-06 General Electric Company Method and assembly for forming components having internal passages using a jacketed core
US9579714B1 (en) 2015-12-17 2017-02-28 General Electric Company Method and assembly for forming components having internal passages using a lattice structure
US9968991B2 (en) 2015-12-17 2018-05-15 General Electric Company Method and assembly for forming components having internal passages using a lattice structure
US10150158B2 (en) 2015-12-17 2018-12-11 General Electric Company Method and assembly for forming components having internal passages using a jacketed core
US10030526B2 (en) 2015-12-21 2018-07-24 General Electric Company Platform core feed for a multi-wall blade
US9976425B2 (en) 2015-12-21 2018-05-22 General Electric Company Cooling circuit for a multi-wall blade
US9926788B2 (en) 2015-12-21 2018-03-27 General Electric Company Cooling circuit for a multi-wall blade
US10119405B2 (en) 2015-12-21 2018-11-06 General Electric Company Cooling circuit for a multi-wall blade
US9932838B2 (en) 2015-12-21 2018-04-03 General Electric Company Cooling circuit for a multi-wall blade
US10052683B2 (en) 2015-12-21 2018-08-21 General Electric Company Center plenum support for a multiwall turbine airfoil casting
US10053989B2 (en) 2015-12-21 2018-08-21 General Electric Company Cooling circuit for a multi-wall blade
US10060269B2 (en) 2015-12-21 2018-08-28 General Electric Company Cooling circuits for a multi-wall blade
CN105772637B (zh) * 2016-04-14 2018-04-10 清华大学 一种在熔模铸造中利用微生物对蜡模进行辅助脱除的方法
US10335853B2 (en) 2016-04-27 2019-07-02 General Electric Company Method and assembly for forming components using a jacketed core
US10286450B2 (en) 2016-04-27 2019-05-14 General Electric Company Method and assembly for forming components using a jacketed core
US10227877B2 (en) 2016-08-18 2019-03-12 General Electric Company Cooling circuit for a multi-wall blade
US10267162B2 (en) 2016-08-18 2019-04-23 General Electric Company Platform core feed for a multi-wall blade
US10208607B2 (en) 2016-08-18 2019-02-19 General Electric Company Cooling circuit for a multi-wall blade
US10221696B2 (en) 2016-08-18 2019-03-05 General Electric Company Cooling circuit for a multi-wall blade
US10208608B2 (en) 2016-08-18 2019-02-19 General Electric Company Cooling circuit for a multi-wall blade
US10465527B2 (en) * 2016-11-17 2019-11-05 General Electric Company Support for a multi-wall core
US20180161866A1 (en) 2016-12-13 2018-06-14 General Electric Company Multi-piece integrated core-shell structure for making cast component
US11813669B2 (en) 2016-12-13 2023-11-14 General Electric Company Method for making an integrated core-shell structure
US20180161855A1 (en) * 2016-12-13 2018-06-14 General Electric Company Multi-piece integrated core-shell structure with standoff and/or bumper for making cast component
US10807154B2 (en) * 2016-12-13 2020-10-20 General Electric Company Integrated casting core-shell structure for making cast component with cooling holes in inaccessible locations
US10443403B2 (en) 2017-01-23 2019-10-15 General Electric Company Investment casting core
US10626797B2 (en) 2017-02-15 2020-04-21 General Electric Company Turbine engine compressor with a cooling circuit
US10697301B2 (en) * 2017-04-07 2020-06-30 General Electric Company Turbine engine airfoil having a cooling circuit
GB2563222A (en) * 2017-06-06 2018-12-12 Rolls Royce Plc Core positioning in wax pattern die, and associated method and apparatus
EP3415250A1 (de) * 2017-06-15 2018-12-19 Siemens Aktiengesellschaft Gusskern mit übergangsbrücke
CN108166661A (zh) * 2018-01-18 2018-06-15 深圳市大地幕墙科技有限公司 一种制造单层网壳及其刚性节点的方法
US11130170B2 (en) * 2018-02-02 2021-09-28 General Electric Company Integrated casting core-shell structure for making cast component with novel cooling hole architecture
US11480397B2 (en) 2018-03-23 2022-10-25 Raytheon Technologies Corporation Stackable core system for producing cast plate heat exchanger
US10830354B2 (en) * 2018-05-18 2020-11-10 General Electric Company Protection system with gasket for ceramic core processing operation and related method
CN109277538A (zh) * 2018-12-07 2019-01-29 东风商用车有限公司 一种薄壁铸铁件用易熔芯撑及应用方法、所在组合芯
EP4343116A3 (de) 2022-09-26 2024-04-17 RTX Corporation Schaufeln mit gelappten kühlhohlräumen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084247A (en) * 1935-07-10 1937-06-15 Charles J Dockray Method of making chilled metal mold castings
US3314118A (en) * 1964-11-10 1967-04-18 Stanworth George Moulding techniques
US3659645A (en) * 1965-08-09 1972-05-02 Trw Inc Means for supporting core in open ended shell mold
US3596703A (en) * 1968-10-01 1971-08-03 Trw Inc Method of preventing core shift in casting articles
US3965963A (en) * 1973-11-16 1976-06-29 United Technologies Corporation Mold and process for casting high temperature alloys
US4068702A (en) * 1976-09-10 1978-01-17 United Technologies Corporation Method for positioning a strongback
US4078598A (en) * 1976-09-10 1978-03-14 United Technologies Corporation Strongback and method for positioning same
JPS56117861A (en) * 1980-02-18 1981-09-16 Toyota Motor Corp Casting method of hollow cam shaft
US4283835A (en) * 1980-04-02 1981-08-18 United Technologies Corporation Cambered core positioning for injection molding
US4487246A (en) * 1982-04-12 1984-12-11 Howmet Turbine Components Corporation System for locating cores in casting molds
GB2205261B (en) * 1987-06-03 1990-11-14 Rolls Royce Plc Method of manufacture and article manufactured thereby
US5050665A (en) * 1989-12-26 1991-09-24 United Technologies Corporation Investment cast airfoil core/shell lock and method of casting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010011529A1 (de) * 2010-03-15 2011-09-15 Benteler Automobiltechnik Gmbh Verfahren und Vorrichtung zur Herstellung von Gussbauteilen
DE102010011529B4 (de) * 2010-03-15 2011-10-06 Benteler Automobiltechnik Gmbh Verfahren und Vorrichtung zur Herstellung von Gussbauteilen

Also Published As

Publication number Publication date
CA2100371C (en) 2002-04-02
EP0585183A1 (de) 1994-03-02
DE69323817D1 (de) 1999-04-15
JPH06154947A (ja) 1994-06-03
CA2100371A1 (en) 1994-02-11
US5296308A (en) 1994-03-22
JP3226674B2 (ja) 2001-11-05
EP0585183B1 (de) 1999-03-10

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